Arnold, N. (2002). Horrible Science: The Terrible Truth About Time. Scholastic Children's Book.
Lua i Stíl Chicago (17ú heag.)Arnold, Nick. Horrible Science: The Terrible Truth About Time. London: Scholastic Children's Book, 2002.
Lua MLA (9ú heag.)Arnold, Nick. Horrible Science: The Terrible Truth About Time. Scholastic Children's Book, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.